HEADSETS FOR TELEPHONES; HEADSETS FOR USE WITH COMPUTERS; HEADPHONES, AUDIO SPEAKERS, TRANSMITTERS FOR TRANSMITTING DATA TO PRINTERS, CELLULAR TELEPHONES, AND MUSICAL DEVICES; ADAPTERS FOR TELEPHONE PRODUCTS AND MUSIC PLAYERS; DONGLES, NAMELY, AN ADAPTER THAT TRANSMITS ELECTRONIC DATA OR AUDIO DATA TO A RECEIVER OF AUDIO, ELECTRONIC OR RELATED DATA, COMPUTER MOUSES, KEYBOARDS, TELEPHONES, CELL PHONES AND PRINTERS